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Shapes and Polarities of Molecules (Second Edition)

Observations are made of electric effects, including deflections of streams of liquids by a charged rod, and changes in charging time of a capacitor. There is evidence that different molecules give two types of results: some give very marked interactions with electric charges, while others give little effect. To explain these different results, a conceptual model is developed based on two types of molecules: polar and non-polar. Consideration of bond polarity and molecular shape allows prediction of molecular polarity. The molecular dipole model is used to explain differences in solubility, conductivity, and chemical reactivity.
Science Consultant: Professor David Dows, University of Southern California, Los Angeles.
Ward√Ęs Volume 22, CHEM Study #4154, 20 minutes. In color, 1989.

Run time 19 minutes 52 seconds
Producer CHEM Study, College of Chemistry and Lawrence Hall of Science, U.C. Berkeley
Audio/Visual sound


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